149857208 has 8 divisors (see below), whose sum is σ = 280982280. Its totient is φ = 74928600.

The previous prime is 149857207. The next prime is 149857217. The reversal of 149857208 is 802758941.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (149857207) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9366068 + ... + 9366083.

It is an arithmetic number, because the mean of its divisors is an integer number (35122785).

Almost surely, 2^149857208 is an apocalyptic number.

It is an amenable number.

149857208 is a deficient number, since it is larger than the sum of its proper divisors (131125072).

149857208 is a wasteful number, since it uses less digits than its factorization.

149857208 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18732157 (or 18732153 counting only the distinct ones).

The product of its (nonzero) digits is 161280, while the sum is 44.

The square root of 149857208 is about 12241.6178669325. The cubic root of 149857208 is about 531.1606320168.

The spelling of 149857208 in words is "one hundred forty-nine million, eight hundred fifty-seven thousand, two hundred eight".